Update vulnerability dashboard deploy action & update github maintainers in custom.js (#17602)

Changes:
- Updated the deploy-vulnerability-dashboard workflow to use the correct
variables for the Heroku steps.
- Added GitHub maintainers to `website/config/custom.js` for the GitHub
workflows related to the vulnerability dashboard.

Author: eashaw

.github/workflows/deploy-vulnerability-dashboard.yml

@@ -22,9 +22,9 @@ jobs:
     # Configure our access credentials for the Heroku CLI
     - uses: akhileshns/heroku-deploy@79ef2ae4ff9b897010907016b268fd0f88561820 # v3.6.8
       with:
-        heroku_api_key: ${{secrets.HEROKU_API_TOKEN_FOR_DEPLOYMENT}}
+        heroku_api_key: ${{secrets.HEROKU_API_TOKEN_FOR_BOT_USER}}
         heroku_app_name: "" # this has to be blank or it doesn't work
-        heroku_email: ${{secrets.HEROKU_EMAIL_FOR_DEPLOYMENT}}
+        heroku_email: ${{secrets.HEROKU_EMAIL_FOR_BOT_USER}}
         justlogin: true
     - run: heroku auth:whoami
 

website/config/custom.js

@@ -232,6 +232,8 @@ module.exports.custom = {
     // Github workflows
     '.github/workflows/deploy-fleet-website.yml': ['eashaw','mikermcneil'],// (website deploy script)
     '.github/workflows/test-website.yml': ['eashaw','mikermcneil'],//« website CI test script
+    '.github/workflows/deploy-vulnerability-dashboard.yml': ['eashaw','mikermcneil'],// (vulnerabiltiy dashboard deploy script)
+    '.github/workflows/test-vulnerability-dashboard-changes.yml': ['eashaw','mikermcneil'],//« vulnerabiltiy dashboard CI test script
     '.github/workflows': ['lukeheath', 'mikermcneil'],//« CI/CD workflows & misc GitHub Actions. Note that some are also addressed more specifically below in relevant sections)
 
     // Repo automation and change control settings